./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:02:09,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:02:09,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 22:02:09,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:02:09,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:02:09,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:02:09,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:02:09,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:02:09,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:02:09,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:02:09,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:02:09,582 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:02:09,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:02:09,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:02:09,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:02:09,585 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:02:09,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:02:09,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:02:09,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 [2024-11-13 22:02:09,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:02:09,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:02:09,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:02:09,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:02:09,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:02:09,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/dll-token-2.i Unable to find full path for "g++" [2024-11-13 22:02:11,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:02:12,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:02:12,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/sv-benchmarks/c/forester-heap/dll-token-2.i [2024-11-13 22:02:12,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/data/d801e6151/bd1bcddaa5db4f45aed04a32ab481363/FLAG5c587e1b3 [2024-11-13 22:02:12,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/data/d801e6151/bd1bcddaa5db4f45aed04a32ab481363 [2024-11-13 22:02:12,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:02:12,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:02:12,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:02:12,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:02:12,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:02:12,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2f5872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12, skipping insertion in model container [2024-11-13 22:02:12,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:02:12,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:02:12,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:02:12,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:02:12,893 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:02:12,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12 WrapperNode [2024-11-13 22:02:12,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:02:12,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:02:12,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:02:12,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:02:12,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,943 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-11-13 22:02:12,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:02:12,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:02:12,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:02:12,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:02:12,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:02:12,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:02:12,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:02:12,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:02:12,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:12" (1/1) ... [2024-11-13 22:02:12,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:02:13,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:02:13,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:02:13,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 22:02:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 22:02:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:02:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:02:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:02:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:02:13,185 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:02:13,187 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:02:13,453 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 22:02:13,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:02:13,482 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:02:13,484 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-13 22:02:13,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:02:13 BoogieIcfgContainer [2024-11-13 22:02:13,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:02:13,485 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:02:13,486 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:02:13,495 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:02:13,495 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:02:13" (1/1) ... [2024-11-13 22:02:13,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:02:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:13,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2024-11-13 22:02:13,565 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2024-11-13 22:02:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 22:02:13,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:13,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2024-11-13 22:02:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2024-11-13 22:02:13,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 22:02:13,827 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 52 states and 74 transitions. [2024-11-13 22:02:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2024-11-13 22:02:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 22:02:14,384 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:14,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:14,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:14,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 81 transitions. [2024-11-13 22:02:14,676 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2024-11-13 22:02:14,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:02:14,677 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:14,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 55 states and 75 transitions. [2024-11-13 22:02:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2024-11-13 22:02:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:02:14,764 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:14,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:02:15,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 48 states and 65 transitions. [2024-11-13 22:02:15,141 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2024-11-13 22:02:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 22:02:15,141 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2024-11-13 22:02:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2024-11-13 22:02:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 22:02:15,434 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:15,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:02:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:02:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:02:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 51 states and 68 transitions. [2024-11-13 22:02:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2024-11-13 22:02:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 22:02:16,691 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:02:16,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:02:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:02:16,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:02:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:02:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:02:16,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:02:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:02:16,965 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2024-11-13 22:02:17,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:02:17 ImpRootNode [2024-11-13 22:02:17,011 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:02:17,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:02:17,012 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:02:17,013 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:02:17,013 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:02:13" (3/4) ... [2024-11-13 22:02:17,015 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:02:17,058 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:02:17,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:02:17,061 INFO L158 Benchmark]: Toolchain (without parser) took 4658.01ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 78.6MB in the end (delta: 13.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-11-13 22:02:17,062 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:02:17,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.51ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 74.7MB in the end (delta: 17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:02:17,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.78ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:02:17,064 INFO L158 Benchmark]: Boogie Preprocessor took 34.55ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:02:17,064 INFO L158 Benchmark]: RCFGBuilder took 505.30ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 54.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:02:17,065 INFO L158 Benchmark]: CodeCheck took 3526.01ms. Allocated memory is still 117.4MB. Free memory was 54.7MB in the beginning and 81.4MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:02:17,065 INFO L158 Benchmark]: Witness Printer took 46.07ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 78.6MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:02:17,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 55 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 415 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 269 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 189 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 145 mSDtfsCounter, 189 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 492 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) [L1006] head->prev = ((void*)0) [L1007] head->data = 0 [L1009] SLL* x = head; VAL [head={30503:0}, x={30503:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 [L1022] x->next = malloc(sizeof(SLL)) [L1023] EXPR x->next [L1023] x->next->prev = x [L1024] EXPR x->next [L1024] x->next->data = 2 [L1026] x = head VAL [head={30503:0}, x={30503:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={30503:0}, x={30503:0}] [L1030] EXPR x->data VAL [head={30503:0}, x={30503:0}] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={30503:0}, x={30503:0}] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next [L1036] x = x->next [L1037] EXPR x->data VAL [head={30503:0}, x={-1:0}] [L1037] COND TRUE !(2 != x->data) [L1037] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-token-2.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.51ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 74.7MB in the end (delta: 17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.78ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.55ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 505.30ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 54.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3526.01ms. Allocated memory is still 117.4MB. Free memory was 54.7MB in the beginning and 81.4MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.07ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 78.6MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 22:02:17,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f682d30b-77ba-493b-88b4-3626aa7f92ce/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)